<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- 合并两个 object 的键值对 -->
    <script>
        var obj = {
            name : "xiao chen",
        }
        var obj1 = {
            age:20
        }
        var arr = {};
        var JEt = Object.assign(arr,obj1,obj);
        console.log(JEt);
    </script>
</body>
</html>